Basement Conversion in Oregon

Conrad Construction is Portland's trusted ADU builder with 20+ years of experience. Specializing in backyard cottages, garage conversions, granny flats & detached ADUs, they handle permits, design & construction to boost property value.read more

Top Form Contracting offers expert ADU construction in Corvallis, Oregon. Services include design, new builds, garage conversions, and JADUs. Licensed, permit-compliant, and affordable — ideal for adding rental income or flexible living space.read more

Sierra James Construction is Central Oregon's top ADU builder since 2017, offering custom & pre-approved ADU designs, garage conversions, attached units & green builds. Earth Advantage-certified specialists ensure quality, code-compliant c... read more

ADU-PDX is a Portland-based ADU builder with 30+ years of experience. They specialize in garage conversions, detached ADUs, granny flats & in-law suites, handling permits and zoning for hassle-free builds across the Portland metro area.

Tweto Architecture specializes in ADU design, including detached ADUs, garage conversions & basement units. Serving Portland, Vancouver & Bend, they help homeowners add rental units, in-law suites & backyard cottages while navigating l... read more

Highland Ridge Remodeling helps Portland homeowners build accessory dwelling units (ADUs), including detached ADUs, garage conversions, and in-law suites. From design to permitting and construction, they deliver tailored, high-quality living space... read more

Laursen Builders specializes in ADU construction in Oregon, offering detached backyard cottages, garage conversions, basement conversions, and bump-out additions. As experienced ADU contractors, they help homeowners navigate Oregon's evolving ADU ... read more

ADUs (Accessory Dwelling Units) are secondary housing units on residential properties. Popular in Oregon and California, they boost property value, generate rental income, and support multigenerational living. Financing options and local zoning ru... read more

JCS Construction LLC builds custom ADUs in Oregon, including detached backyard cottages, granny flats, garage conversions, basement conversions, and pole building ADUs. They handle both standard and non-traditional structures with quality craftsma... read more

Das Chapin Design specializes in ADU design, garage & basement conversions, and general contracting. Offering permit support, construction consultation, and full build services via ADU Design & Build, LLC, they create efficient, livable sp... read more

Home Remodel Portland builds code-compliant ADUs including garage conversions, backyard cottages, and basement units. They handle permits, zoning, and inspections with local expertise, offering a clear process and three-year warranty.

ADU builder Amplified Renovations serves Portland, OR and Vancouver, WA, specializing in accessory dwelling units including backyard cottages, garage conversions, and basement ADUs. Costs range from $150K–$350K+, with rental income potential of ... read more

Accessory Dwelling Units (ADUs) in Bend, Oregon are growing in popularity. Montgomery Builders specializes in garage conversions, detached ADUs & in-law suites, helping homeowners navigate Bend's updated ADU regulations efficiently.